Collimated color television display tube

Claim 1

IN A COLLIMATED MULTIPLE BEAM COLOR TELEVISION DISPLAY TUBE, THE COMBINATION COMPRISING: (A) A DISPLAY REPRODUCING SCREEN, (B) GROUPS OF PARALLEL BARS ON SAID SCREEN, EACH GROUP INCLUDING COLOR BARS EMITTING LIGHT OF DIFFERENT COLOR WHEN IMPINGED UPON BY RADIANT ENERGY AND ARRANGED IN A PREDETERMINED PATTERN BETWEEN TWO CONDUCTING BARS, (C) BEAM PRODUCING MEANS GENERATING A PLURALITY OF RADIANT ENERGY BEAMS EQUAL TO THE NUMBER OF BARS IN EACH GROUP OF BARS AND ARRANGED IN SAID PREDETERMINED PATTERN SO THAT A SINGLE BEAM WILL IMPINGE ONLY ON THE CORRESPONDING BAR ACCORDING TO SAID PREDETERMINED PATTERN, (D) MEANS FOR APPLYING A FIRST SINE WAVE MODULATING SIGNAL TO THE BEAM IMPINGING ON ONE OF SAID TWO CONDUCTING BARS, (E) MEANS FOR APPLYING A SECOND SINE WAVE MODULATING SIGNAL OF OPPOSITE PHASE TO SAID FIRST SINE WAVE MODULATING SIGNAL TO THE OTHER OF SAID TWO CONDUCTING BARS WHEREBY EACH SINE WAVE MODULATED BEAM IMPINGES THE SAME ON ITS CORRESPONDING CONDUCTING BAR, (F) MEANS COUPLED TO SAID CONDUCTING BARS AND BEING RESPONSIVE TO ANY SIGNAL PRODUCED BY UNEQUAL IMPINGEMENT OF SAID SINE WAVE MODULATED BEAMS ON THEIR CORRESPONDING CONDUCTING BARS TO RETURN SAID MODULATED BEAMS TO EQUAL IMPINGEMENT.